Giant heads occasionally litter the industrial Houston neighborhood where sculptor David Adickes has his studio.

Fantastic collection celebrating the final send-off.

The world's tallest statue of an American hero.

Witness to many historic moments in early Texas history.

The Grand Canyon of Texas.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

There aren't too many operational funiculars around, but Pittsburgh has two!

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A walk through the historic city center, under the streets of Seattle.

Macabre astrological automaton clock dating to the late 1400s.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

An emerald-green grotto just a short trip from Austin.

The vast, legendary catacombs hold secrets much stranger than stacked bones.